This report describes techniques and equipment that can be used by U.S. Army Corps of Engineers personnel in the 38 Districts to perform hydrographic surveys. These techniques should improve each District's operating efficiency by reducing the time lag between data collection and final report or completed chart. The report uses simple explanations and nonmathematical descriptions of the subjects covered and should be readable by all levels of survey branch personnel. Names and addresses of...
Topics: DTIC Archive, Hart,E Dale, ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS, *ARMY CORPS...
A feasibility study has been initiated which is aimed at the manufacture of low cost, thermosetting, cross-linkable polymers by using the carboxylic acid mixture obtained in the oxidation of the coal conversion process chars. The main criteria utilized in the selection of polymerization approaches are: (1) the polymerization process should be commercially feasible; (2) the co-reactant(s) should be low cost, readily available materials; (3) the polymerization should be relatively insensitive to...
Topics: DTIC Archive, Solomon, I. J., IIT RESEARCH INST CHICAGO IL, *CONVERSION, *POLYMERS,...
Compilations of bibliographies from the principal investigator groups of the Apollo Telescope Mount (Skylab solar observatory facility) are presented. The publications listed are divided into the following categories: (1) journal publications, (2) journal publications submitted, (3) other publications, (4) presentations - national and international meetings; and (5) other presentations.
Topics: NASA Technical Reports Server (NTRS), APOLLO PROJECT, MOUNTING, TELESCOPES, DOCUMENTS, INFORMATION...
Soviet exploitation of their own technological developments has produced increasingly strong foward battle area surface-to-air defenses and, at the same time, strengthened the need for our own combat fire support to help offset the massive enemy ground force fire power advantage. Recent technological innovations on our part--e.g., standoff munitions, homing weapons, remotely piloted vehicles--promise to alleviate this situation, but the data links needed by many of these new devices present a...
Topics: DTIC Archive, Ellis,John W , Jr, RAND CORP SANTA MONICA CALIF, *DATA LINKS, *REMOTELY PILOTED...
The most authoritative catalogs of photographs of all Gemini missions are assembled. Included for all photographs are JSC (Johnson Space Center) identification number, percent cloud cover, geographical area in sight, and miscellaneous information. In addition, details are given on cameras, filters, films, and other technical details.
Topics: NASA Technical Reports Server (NTRS), AERIAL PHOTOGRAPHY, CATALOGS (PUBLICATIONS), GEMINI FLIGHTS,...
Small-scale experiments were conducted to obtain data on incident overpressure at various distances from bursting pressurized spheres. Complete time histories of blast overpressure generated by rupturing glass spheres under high internal pressure were obtained using eight side-on pressure transducers. A scaling law is presented, and its nondimensional parameters are used to compare peak overpressures, arrival times, impulses, and durations for different initial conditions and sizes of blast...
Topics: NASA Technical Reports Server (NTRS), BLAST LOADS, OVERPRESSURE, RUPTURING, SPHERES, EXPLOSIONS,...
This report seeks to provide insight into the configuration control problems that can occur after a competitive procurement. The author discusses the configuration control problems experienced by the 5-in./54 MK-45 Lightweight Gun System Program Office as a result of a competitive procurement. Specifically the problem areas include: Configuration identification, Change control and Configuration status accounting. The configuration control procedures formulated and implemented to correct the...
Topics: DTIC Archive, Garza,Fred , Jr, DEFENSE SYSTEMS MANAGEMENT COLL FORT BELVOIR VA, *MANAGEMENT...
The dynamic response of the AALC 1/6 scale JEFF (B) model for craft passage over gullies or ground plane indentations is presented for a series of gully lengths. The experimental results are compared with responses predicted by a static mathematical model of the JEFF (B) vertical plane response. (Author)
Topics: DTIC Archive, Moran,David D, DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD...
The effects of a water, oil and 400 F salt quench upon mechanical properties and microstructure of a 2-in. thick block of gun steel were studied. The 400 F salt quench was found to be the mildest quenchant. The water and oil quenching effects were compared to the empirical predictions of Grossman with good qualitative agreement.
Topics: DTIC Archive, Niccolls, E H, ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER WATERVLIET NY LARGE...
Document number CIA-RDP79B00457A001200130001-6 declassified and released through the CIA's CREST database. Previously available only on four computers located outside of Washington D.C., the Agency was successfully pressured into putting the files online as a result of a MuckRock lawsuit and the efforts of Emma Best. The metadata was collected by Data.World, and the files are now being archived and made text searchable by the Internet Archive.
Topics: CREST, General CIA Records, RIPPUB, REPORT, CIA, Central Intelligence Agency
Evaluation of a course in global education must determine whether a student knows basic information about the world and whether he sees himself as an integral part of that world. The evaluator is concerned with the quality of curriculum, teaching methods and materials, and with the actual content the student has learned. Both cognitive and affective domains must be evaluated to ensure that the student knows and applies relevant facts. The first step is for the evaluator to set up a logical...
Topics: ERIC Archive, Affective Measures, Attitude Measures, Cognitive Measurement, Course Evaluation,...
College freshmen enrolled in an introductory course in reading instruction were trained to use programed tutoring techniques with children in local elementary schools. The programed tutoring guidelines specified in detail how and what to teach; skills taught in the program were oral reading, comprehension, and word-attack skills. In the pilot project for the program, 25 college students first met on campus for 18 hours of training in the techniques of programed tutoring, including rehearsal of...
Topics: ERIC Archive, College Freshmen, Elementary Education, Higher Education, Preservice Teacher...
This publication supersedes the Coast Guard pamphlet 'Rules of the Road, International-Inland' (CG-169) dated August 1, 1972. This edition contains the International Regulations for Preventing Collisions at Sea, 1972 (commonly called the 72 COLREGS) which must be followed by all public and private vessels of the United States while navigating upon the high seas. The 72 COLREGS are part of an international convention that was developed under the auspices of the United Nations' Inter-Governmental...
Topics: DTIC Archive, COAST GUARD WASHINGTON DC, *REGULATIONS, *SURFACE NAVIGATION, STEERING, SHIPS, SHAPE,...
In response to a request by the NATO Military Committee to undertake a technology forecasting effort in the field of aerospace, AGARD first entered an initial phase during which it strove to improve its understanding of technology forecasting in order to possibly provide a more useful product to the Military Committee. One aspect of this was to examine if there were formal technology forecasting methodologies which could be applied beneficially to an AGARD exercise.
Topics: DTIC Archive, Hetman,Francois, ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS...
This survey covers the theory and application of Lagrangian techniques to discrete optimization problems. A discussion of the applications includes integer programming special structures which can be exploited by Lagrangean techniques, multi-item production scheduling and inventory control problems, and the traveling salesman problem. The relationship of Lagrangean techniques to duality theory and convex analysis is given including a discussion of algorithms to solve the dual problems. Duality...
Topics: DTIC Archive, Shapiro,Jeremy F, MASSACHUSETTS INST OF TECH CAMBRIDGE OPERATIONS RESEARCH CENTER,...
Investigations were conducted on solid-solid reactions in gold films evaporated on silicon substrates at deposition temperatures below the eutectic point (370 C). Both air- and vacuum-annealed structures were studied using correlated data from transmission electron microscopy/diffraction (TEM/TED), Auger electron spectroscopy (AES) profiling, and forward current-voltage (I-V) measurements. Results of these experiments show that the grain size in Au films deposited (or annealed) at temperatures...
Topics: DTIC Archive, Magee, T J, STANFORD RESEARCH INST MENLO PARK CA, *GOLD, *SILICON, *SOLID STATE...
A rapid and accurate approximation to the Lorentz line molecular absorption coefficient has been developed which significantly reduces the time of line-by-line transmittance calculations. By separating computations required for each spectral line, atmospheric level, and absorbing gas under consideration, arithmetical operations are minimized. Time tests were conducted while computing the monochromatic absorption coefficient for five frequency channels in the 4.3 micrometers band. The...
Topics: DTIC Archive, Potter,Michael T, TEXAS UNIV AT EL PASO DEPT OF ELECTRICAL ENGINEERING, *MOLECULAR...
A circuit for interfacing the JOLT (TM) microprocessor to four digital displays was designed and fabricated. Circuit operation and test program are described and presented in detail.
Topics: NASA Technical Reports Server (NTRS), COMPUTER STORAGE DEVICES, DIGITAL DATA, DISPLAY DEVICES,...
The hot corrosion resistance of nickel-chromium-aluminum alloy was examined by cyclically oxidizing sodium sulfate coated specimens in still air at 900, 1000 and 1100 C. The compositions tested were within the ternary region: Ni; Ni-50 at.% Cr; and Ni-50 at.% Al. At each temperature the corrosion data were statistically fitted to a third order regression equation as a function of chromium and aluminum contents. Corrosion isopleths were prepared from these equations. Compositional regions with...
Topics: NASA Technical Reports Server (NTRS), ALUMINUM ALLOYS, CHROMIUM ALLOYS, CORROSION RESISTANCE,...
Call Number : CLGS 44/5
Topics: californiarevealed, LGBTQ
Source: 6 Pages of 6: Document (8.5 x 11 in.)
The objective was to determine quantitative relationships between human resource variables and technician performance on maintenance tasks for nuclear missile systems. Human resource variables relevant to maintenance operations were identified and instruments for measuring these variables were developed. Task performance measures were developed. An eleven-category taxonomy was developed for coding the maintenance tasks. Data on task performance, human resource variables, and technician opinions...
Topics: DTIC Archive, Sauer,Daniel W, SYSTEMS RESEARCH LABS INC DAYTON OHIO, *HUMAN FACTORS ENGINEERING,...
This thesis examines the issues relating to non-discretionary access controls for dencentralized computing systems. Decentralization changes the basic character of a computing system from a set of processes referencing a data base to a set of processes sending and receiving messages. Because messages must be acknowledged, operations that were read-only in a centralized system become read-write operations. As a result, the lattice model of non-discretionary access control, which mediates...
Topics: DTIC Archive, Karger, Paul Ashley, MASSACHUSETTS INST OF TECH CAMBRIDGE LAB FOR COMPUTER SCIENCE,...
This report describes efforts made to recover waste heat and to reuse it to heat a building. A heat pump, which is a refrigeration device, was operated to provide building heat and to demonstrate both economic benefits and energy savings possible with this type of heating system. Heat pump fundamentals and system design considerations supplement the report of this demonstration project. Operational characteristics were monitored and are reported. A 25% reduction in heating costs was observed...
Topics: DTIC Archive, Sector,Peter W, COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H, *HEAT PUMPS,...
This report covers the results of investigations directed toward studying the effects of novel aromatic diamine structures on epoxy adhesive properties and includes work done under a modification to the original contract. The results accomplished under the original contract have been reported in NASA CR-145022. Three aromatic diamines based on diphenylsulfone and benzophenone were studied as epoxy adhesive curing agents. Previously found differences in adhesive strengths for meta vs para...
Topics: DTIC Archive, Glasgow, D. G., MONSANTO RESEARCH CORP DAYTON OH DAYTON LAB, *PRECURSORS, *EPOXY...
A solution to the energy problem is suggested through the technology of photovoltaic electrolysis of water to generate hydrogen. Efficient solar devices are discussed in relation to available solar energy, and photovoltaic energy cost. It is concluded that photovoltaic electrolytic generation of hydrogen will be economically feasible in 1985.
Topics: NASA Technical Reports Server (NTRS), AEROSPACE ENGINEERING, ELECTROLYSIS, HYDROGEN PRODUCTION,...
The utilization of solar energy for electrical power production was studied. Efforts underway on the central receiver solar thermal power system are presented. Preliminary designs are included of pilot plant utilizing large numbers of heliostats in a collector field. Safety hazards are also discussed, as well as the most beneficial location of such a plant within the United States.
Topics: NASA Technical Reports Server (NTRS), ELECTRIC POWER PLANTS, SOLAR CELLS, SOLAR COLLECTORS, SOLAR...
Topics: NASA Technical Reports Server (NTRS), COMPUTERIZED SIMULATION, COOLING SYSTEMS, EVAPORATION,...
Effects of varying engine inlet Reynolds number index (0.75, 0.50, 0.25, and 0.12) and temperature (289 and 244 K) on a TFE731-2 turbofan engine were evaluated. Results were classified as either compression system effects or effects on overall performance. Standard performance maps are used to present compression system performance. Overall performance parameters are presented as a function of low rotor speed corrected to engine inlet temperature.
Topics: NASA Technical Reports Server (NTRS), ENGINE INLETS, REYNOLDS NUMBER, TEMPERATURE EFFECTS,...
Film-cooling-air ejection from the pressure surface of a turbine vane was investigated, and experimental data are presented. This investigation was conducted in a four-vane cascade on a J75-size turbine vane that had a double row of staggered holes in line with the primary flow and located downstream of the leading edge region. The results showed that: (1) the average effectiveness of film-convection cooling was higher than that of either film cooling or convection cooling separately; (2) the...
Topics: NASA Technical Reports Server (NTRS), CONVECTIVE HEAT TRANSFER, FILM COOLING, JET VANES, TURBINE...
The author has identified the following significant results: (1) LANDSAT imagery can be used effectively as a baseline for detection of environmental change, resulting from construction of a major inland reservoir. (2) Forest cover can be observed adequately on two-band composite enlargements at a scale of 1:130,000. (3) Forest cover delineated on LANDSAT enlargements compares accurately with ground truth at a scale of 1:250,000. (4) A dual image mapping technique superimposing winter, summer,...
Topics: NASA Technical Reports Server (NTRS), DAMS, ECOLOGY, FORESTS, GROUND TRUTH, LAND USE, MISSOURI,...
The management of NASA earth observation data is discussed. User requirements are identified, as well as means to facilitate data acquisition. It is shown that LANDSAT data can be preprocessed to condense data into a more accessible format, thus reducing data acquisition costs.
Topics: NASA Technical Reports Server (NTRS), DATA ACQUISITION, DATA MANAGEMENT, EARTH RESOURCES PROGRAM,...
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The fibers investigated to date on this program are all in multifilament yarn form and are highly flexible and easily handled. The fibers are alumina fiber FP, a mixed oxide fiber AB 312, and a mixed oxide fiber. All composite matrices were aluminum alloys whose compositions were selected on the basis of melt surface tension and reactivity with the reinforcing fibers. The fabrication process chosen was vacuum infiltration casting. Fiber properties important for achieving a strong composite were...
Topics: DTIC Archive, Prewo,Karl M, UNITED TECHNOLOGIES RESEARCH CENTER EAST HARTFORD CONN, *FIBER...
The objective of CAST is to establish the necessary structural and manufacturing technologies and to demonstrate and validate the integrity, producibility, and viability of cast aluminum primary airframe structures. The baseline design is the AMST prototype YC-14 and the component selected was the Nose Landing Gear Support Bulkhead. Preliminary design activities are described that were aimed at the minimum goal of 30% acquisition cost savings with no weight penalty. Preliminary design data were...
Topics: DTIC Archive, Goehler, Donald, BOEING AEROSPACE CO SEATTLE WA, *ALUMINUM ALLOYS, *AIRFRAMES,...
The maximum-entropy method (MEM) of spectral analysis is a technique for estimating the power spectra of time-series data. The purpose of this note is to survey the literature of the MEM and to provide some insight into its derivation and usage. Fortran subroutines for computing the MEM power spectra of complex-valued data are included. (Author)
Topics: DTIC Archive, Herring,R W, COMMUNICATIONS RESEARCH CENTRE OTTAWA (ONTARIO), *POWER SPECTRA,...
This report describes work performed from 1 Jan 77 through 28 Feb 77 on the Repetitive Series Interrupter, a hydrogen thyratron modified for opening switch operation. A description is given of two tubes designed for optical study of current interruption, and of results obtained from them. Experimental modifications are discussed and new designs for experimental interrupters are outlined. (Author)
Topics: DTIC Archive, Simon,Robert, EG AND G INC SALEM MASS ELECTRONIC COMPONENTS DIV, *ELECTRONIC...
The results of the hormonal tests which are reported in summary form were positive. In frogs, the melatonin and the intermedin (MSH) demonstrated their opposite action on the pigmented cells of the internal ear, pia, and dura mater as well as the outer layer cortex. Melatonin caused a contraction of the cellular elements and a consequent paling of the mantle of the animals. Intermedin caused cellular expansion in various areas examined with a simultaneous surface chromatic accentuation. The...
Topics: DTIC Archive, Cherubino,M, ARMY MEDICAL INTELLIGENCE AND INFORMATION AGENCY WASHINGTON D C,...
The use of the 'Markham' semi-micro still in the determination of ethyl centralite in propellants is described. The new procedure gives results which compare well with those from the traditional steam distillation-gravimetric method, so that continuity can be assured for propellants undergoing extended accelerated thermal ageing. A determination can be completed within thirty minutes by the new method, compared with 24 hours by the existing method. The apparatus is more compact, and smaller...
Topics: DTIC Archive, Davidson,R G, MATERIALS RESEARCH LABS MARIBYRNONG (AUSTRALIA), *PROPELLANTS, *STEAM,...
This Visual System Design Report is provided in response to Data Item A003 of Contract No. N61339-75-C-0009 for the Aviation Wide-Angle Visual System (AWAVS). The overall objective of the Design Report, together with the Configuration, Facilities, Math Model and Design Analysis Reports is to present a total picture of the design and development engineering functions, and the implementation of these functions to achieve the characteristics and performance for the visual portion of the AWAVS/VTFS...
Topics: DTIC Archive, Fisher, Robert A, SINGER CO BINGHAMTON NY LINK DIV, *FLIGHT SIMULATORS, *IMAGE...
From the bitsavers.org collection, a scanned-in computer-related document. dec :: pdp11 :: xxdp :: diag listings :: DL11 :: MAINDEC-11-DZDLC-B-D DL11C D E-Off-Line-Test May77
Topics: mov, error, user, bne, device, routine, cmp, character, jsr, timeout, mov mov, user response, error...
In a hybrid communication system, comprising both satellite and terrestrial networks, part of the network topology is adaptable. The availabiltiy of adaptable topology and alternate routing in such networks provides the designer with considerable freedom to insure satisfactory network and point-to-point grades of service. The complexity inherent in such a design problem is discussed. A heuristic algorithm--which can be implemented on a digital computer--for designing hybrid networks with the...
Topics: DTIC Archive, Thapar,H K, PURDUE UNIV LAFAYETTE IND SCHOOL OF ELECTRICAL ENGINEERING,...
In this paper, for the general linear model Y = X beta + e, we consider the construction of confidence bounds about the entire regression line. To accomplish this we exploit a powerful theorem of Scheffe. A procedure often encountered is one in which a set of confidence intervals about E(y,x) or prediction intervals for future observations are determined and then the end points are connected in such a fashion as to describe an envelope. The belief is that what has been accomplished is precisely...
Topics: DTIC Archive, Taylor,Malcolm S, BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD, *DATA...
This report contains propellant test results from cartons of TP-H1011 bulk propellant representing LGM-30 F and G First Stage Minuteman Motors. This report uses a statistical approach to analyze the bulk carton propellant data. Testing was accomplished in accordance with MMEMP Project M72632-5MP116P. The data from this test period are combined with data from previous testing and entered into the G085 computer for storage, analysis and regression analysis. From the statistical analysis of all...
Topics: DTIC Archive, Thompson,John A, OGDEN AIR LOGISTICS CENTER HILL AFB UTAH PROPELLANT LAB SECTION,...
The objective of this project has been to provide supervisors of shipyard surface preparation and coating operators with a catalog of the small tools and support equipment used by blasters and painters. The prime criteria for format development being easy reference and understanding of the data presented. The catalog contains equipment description, pictures, suppliers, recommended applications, description of surface obtained and equipment limitations. Additionally, the principles of efficient...
Topics: DTIC Archive, Peart, John, AVONDALE SHIPYARDS INC NEW ORLEANS LA, *SAFETY, *SHIPBUILDING, *SMALL...
Individuals previously identified as language-bound (LB) and language- optional (LO) participated in a series of experiments designed to study verbal fluency. The two groups showed a striking similarity in the number of responses they produced for categories with constraints at various levels (word form, word content, sentence, interpretation). This similarity occurred for both written and oral modes of response, and over a wide range of time intervals. Other types of measures, however,...
Topics: DTIC Archive, Day,Ruth S, YALE UNIV NEW HAVEN DEPT OF PSYCHOLOGY, *INFORMATION PROCESSING, *VERBAL...
A two-dimensional r-z fluid code has been developed to study the interaction between a relativistic electron beam and an anode plasma. A self-consistent treatment of the electromagnetic fields has been included. Radial pinching of the beam is observed when its self-field resistively diffuses into the plasma. (Author)
Topics: DTIC Archive, Colombant,D G, NAVAL RESEARCH LAB WASHINGTON D C, *PLASMAS(PHYSICS), *ELECTRON BEAMS,...
The purpose of this research effort is to develop and assess the accuracy of mathematical techniques which estimate PEBD force structure data (and, concurrently, obtain cost estimates) from TAFMS force structure data. Statistical techniques involving marginal estimation, cell-by-cell conversion, and lagged correlation and regression models were developed and evaluated in terms of their ability to both accurately estimate individual force structure cells and obtain the cost of the entire force...
Topics: DTIC Archive, Borack,Jules I, NAVY PERSONNEL RESEARCH AND DEVELOPMENT CENTER SAN DIEGO CA,...
A class of production correspondences for which nonproportional scaling of inputs (outputs) result in fixed scaling of outputs (inputs) is introduced. Such correspondences termed, almost ray-homothetic contain the ray-homothetic structure as a speciAL CASE. Although more general this scaling law maintains the linearity of expansion paths, and under special conditions on the input (output) set it is shown that linear expansion under nonlinear change of inputs (outputs) imply almost...
Topics: DTIC Archive, Al-Ayat,Rokaya, CALIFORNIA UNIV BERKELEY OPERATIONS RESEARCH CENTER, *INPUT OUTPUT...
Changes of longitudinal-wave velocity (VL), porosity, and Q, together with optical and scanning electron microscopic observations, demonstrate unequivocally that appreciable thermal cracking occurs during slow thermal cycling of Sioux Quartzite. Thermally-induced cracks develop primarily along grain boundaries and secondarily as intragranular cracks. Intragranular cracks are preferentially oriented and appear to be influenced by the preheating residual strain state locked-in the rock. Acoustic...
Topics: DTIC Archive, Handin,John, TEXAS A AND M UNIV COLLEGE STATION CENTER FOR TECTONOPHYSICS,...
A scheme was constructed and a theoretical model was developed to classify electrostatic emissions. All of the emissions appear to be generated by the same basic mechanism: an unstable electron plasma distribution consisting of cold electrons (less than 100 eV) and hot loss cone electrons (about 1 keV). Each emission class is associated with a particular range of model parameters; the wide band electric field data can thus be used to infer the density and temperature of the cold plasma...
Topics: NASA Technical Reports Server (NTRS), ELECTROSTATIC CHARGE, EMISSION, GYROFREQUENCY, PLASMAS...
